In an interview with me last year, the innovative billionaire entrepreneur Taizo Son lamented the state of primary education, including in Singapore. It is, in many respects, the same as when he went to school in the 1970s, he said: The teachers are teaching and the students are passively listening.

He pointed out that an education system for the 21st century needs to develop four key skills or the "four Cs" - creativity, critical thinking, communication skills, and cooperation skills - and the existing model isn't fit for purpose.